diff --git a/tests/root/conf.py b/tests/root/conf.py
index 37d5e91a74..a3ebeec79f 100644
--- a/tests/root/conf.py
+++ b/tests/root/conf.py
@@ -3,6 +3,7 @@
 import sys, os
 
 sys.path.append(os.path.abspath('.'))
+sys.path.append(os.path.abspath('..'))
 
 extensions = ['sphinx.ext.autodoc', 'sphinx.ext.jsmath', 'sphinx.ext.todo',
               'sphinx.ext.coverage', 'sphinx.ext.autosummary',